Well I underestand you love this lady...but you cant fight her choice, hmmm actually its not a choice, she is lesbian so basically thats something that its not gonna change.... Unless you are willing to become a woman...
Anyway just relax, and spend time with the kids, it hurts but look, she at least will be happy!! Focus on yourself and just realize that its not always about us... If she is lesbian probably all this past years were very very hard for her...
As a rule, I try not to engage in "meta" (advice about the advice, rather than about the post content) but this is absolute rubbish.
I've seen DOZENS of marriages successfully reconcile after the wayward/walkaway wife thought she was a lesbian. Yes, she may have been born with this predisposition (and even then it doesn't mean that's the only way she'll be happy), but it could just as easily be a period of mid-life experimentation that is really no different than a PA with another man.
I would hate to see this poster give up so soon, thinking "there's nothing I can do." He still has a LOT of cards he can play.
so basically thats something that its not gonna change.... Unless you are willing to become a woman...